* Introduce flattened error reporting for properties, call signatures, and construct signatures * Update message, specialize output for argument-less signatures * Skip leading signature incompatability flattening * Add return type specialized message
7 lines
384 B
TypeScript
7 lines
384 B
TypeScript
// @strict: true
|
|
type Cb<T> = {noAlias: () => T}["noAlias"]; // `"noAlias"` here prevents an alias symbol from being made
|
|
// which means the comparison will definitely be structural, rather than by variance
|
|
|
|
declare const x: Cb<Cb<Cb<Cb<number>>>>; // one more layer of `Cb` adn we'd get a `true` from the deeply-nested symbol check
|
|
declare let y: Cb<Cb<Cb<Cb<string>>>>;
|
|
y = x; |